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Preparation method of copper metal organic frameworks / polyvinyl alcohol nanocomposite films

A technology of polyvinyl alcohol and organic framework, which is applied in the field of preparation of copper metal organic framework (Cu32)/polyvinyl alcohol nanocomposite film, can solve problems such as not being able to meet the requirements of use, and achieve the effect of good mechanical strength

Inactive Publication Date: 2017-06-13
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of material science, pure PVA materials can no longer meet the requirements of use, which requires the modification of existing PVA to meet the performance requirements of materials

Method used

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  • Preparation method of copper metal organic frameworks / polyvinyl alcohol nanocomposite films
  • Preparation method of copper metal organic frameworks / polyvinyl alcohol nanocomposite films
  • Preparation method of copper metal organic frameworks / polyvinyl alcohol nanocomposite films

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: mass percent concentration is 0.05% Cu 3 (BTC) 2 / Preparation of polyvinyl alcohol film

[0020] (1) Weigh 10g of polyvinyl alcohol particles into 100mL of deionized water, heat to 60°C, and stir for 1 hour to obtain a polyvinyl alcohol solution with a mass percentage concentration of 10% for use.

[0021] (2) Add 1.5 mL of Cu(NO 3 ) 2 The solution was mixed with 1 mL of triethylamine salt solution of trimesic acid with a concentration of 0.1 mol / L.

[0022] (3) Mix ethanol and deionized water at a volume ratio of 1:1.

[0023] (4) Evenly mix the solution obtained in step (2) with 50 mL of ethanol aqueous solution obtained in step (3), stir and react at room temperature at 1000 rpm for 1 hour, and centrifuge the obtained solution after the reaction is completed. The centrifugation time is 10 minutes, and the centrifugation speed is 1000rpm, pour off the original solution, remove the solid in the lower layer, add absolute ethanol and deionized water t...

Embodiment 2

[0025] Embodiment 2: mass percent concentration is 0.1% Cu 3 (BTC) 2 / Preparation of polyvinyl alcohol film

[0026] (1) Weigh 10g of polyvinyl alcohol particles into 100mL of deionized water, heat to 60°C, and stir for 1 hour to obtain a polyvinyl alcohol solution with a mass percentage concentration of 10% for use.

[0027] (2) Add 1.5 mL of Cu(NO 3 ) 2 The solution was mixed with 1 mL of triethylamine salt solution of trimesic acid with a concentration of 0.1 mol / L.

[0028] (3) Mix ethanol and deionized water at a volume ratio of 1:1.

[0029] (4) Uniformly mix the solution obtained in step (2) with 50 mL of ethanol aqueous solution obtained in step (3), stir and react at room temperature at 1000 rpm for 1 hour, and centrifuge the obtained solution after the reaction. The centrifugation time is 12 minutes, and the centrifugation speed is 1500rpm, pour off the original solution, remove the solid in the lower layer, add absolute ethanol and deionized water to wash by c...

Embodiment 3

[0031] Embodiment 3: mass percentage concentration is the Cu of 0.2% 3 (BTC) 2 / Preparation of polyvinyl alcohol film

[0032](1) Weigh 10g of polyvinyl alcohol particles into 100mL of deionized water, heat to 60°C, and stir for 1 hour to obtain a polyvinyl alcohol solution with a mass percentage concentration of 10% for use.

[0033] (2) Add 1.5 mL of Cu(NO 3 ) 2 The solution was mixed with 1 mL of triethylamine salt solution of trimesic acid with a concentration of 0.1 mol / L.

[0034] (3) Mix ethanol and deionized water at a volume ratio of 1:1.

[0035] (4) Uniformly mix the solution obtained in step (2) with 50 mL of the ethanol aqueous solution obtained in step (3), stir and react at room temperature at 1000 rpm for 2 hours, and centrifuge the obtained solution after the reaction. The centrifugation time is 15 minutes, and the centrifugation speed is 2000rpm, pour off the original solution, remove the solid in the lower layer, add absolute ethanol and deionized wate...

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Abstract

The invention discloses a preparation method of copper metal organic frameworks / polyvinyl alcohol nanocomposite films. The method comprises the steps of S1, using triethylamine combining Cu3 (NO) 2 and trimesic acid as the material, adding the material in the mixture of deionized water and ethanol, stirring uniformly the mixture to obtain Cu3(BTC)2 nanoparticles, S2, adding polyvinyl alcohol into the deionized water, heating and stirring the water to obtain a polyvinyl alcohol solution, adding Cu3(BTC)2 nanoparticles into the polyvinyl alcohol solution, stirring the solution, conducting ultrasonic treatment to obtain Cu3(BTC)2 / polyvinyl alcohol solution mixture solution, S3, pouring the mixture solution uniformly on a glass board, conducting vacuum drying to obtain the copper metal organic frameworks / polyvinyl alcohol nanocomposite films. The Cu3(BTC)2 / polyvinyl alcohol nanocomposite film has a good mechanical strength, and has application potentials in the fields such as packing material, tissue engineering material and filtering film material.

Description

technical field [0001] The invention relates to the technical field of preparation of polyvinyl alcohol nanocomposite membrane materials, in particular to a copper metal organic framework (Cu 3 (BTC) 2 ) / polyvinyl alcohol nanocomposite film preparation method. Background technique [0002] In the 21st century, with the advent of the high-tech era, the rapid growth of the global economy, the rapid development of high-tech technologies such as information, electronics, biology, new materials and new energy, people's demand for functional materials is also growing rapidly. Therefore, researchers have made a lot of explorations in the field of composite materials, hoping to develop more types and more functional materials. Nanocomposites are widely used in coatings, food, textiles, papermaking, It has been widely used in fields such as chemical engineering, daily chemical industry and petroleum development, and its research has become one of the most promising disciplines in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L87/00C08J5/18C08G83/00
CPCC08L29/04C08G83/008C08J5/18C08J2329/04C08J2487/00C08L2203/16C08L87/00
Inventor 邹志明何亮戴义博张淑芬李和平刘峥余彩莉唐群
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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